Why do two rivers not mix?
Why do two rivers not mix? This phenomenon is due to the differences in temperature, speed, and amount of dissolved sediments in the waters of the two rivers. The Rio Negro flows at near 2 km/h (1.2 mph) at a temperature of 28 °C (82 °F), while the Rio Solimões flows between 4 and 6 km/h (2.5–3.7 mph) at a temperature of 22 °C (72 °F).
What river has two colors?
As the seventh longest river in Asia, the Lancang River is a major trade route between China and Southeast Asia. During the rainy season, the section of the river in Xishuangbanna in southwest China's Yunnan Province bisects into two different colors.